Excess molar enthalpies and excess molar volumes of (1,3-dimethyl-2-imidazolidinone + an aromatic hydrocarbon) atT= 298.15 K

Molar Excess Enthalpies of Binary Liquid Mixtures of γ-Valerolactone or δ-Valerolactone + Benzene, + Toluene, or + Ethylbenzene at 293.15 K and Atmospheric Pressure

“…There are only a few other examples in the literature concerning H E curves of M or S shape for binary mixtures of aromatics + polar components. 8,9 As discussed previously, 1 the exothermal effect in the binary mixtures of the three lactones + benzene depends strongly on steric factors, because their dipole moments are almost equal. 2 The shape and size of the molecules appear most favorable for attractive interactions between benzene and lactone molecules.…”

“…This gives an S-shaped curve to this system too. There are only a few other examples in the literature concerning H E curves of M or S shape for binary mixtures of aromatics + polar components. , …”